OF AUSTRALIA. 129 
rays ; the caudal strongly emarginated, of eighteen long rays ; 
the anal has three spines, the first of which is short and the other 
two nearly equal; the second being rather the longest; the 
soft portion much longer than the spines of seven rays ; the 
pectorals of fifteen rays ; the spine of the ventrals slender. 
The general colour is silvery, with some faint small dark 
spots on the body ; the fins are of a bright reddish yellow 
with a few marmorated dark spots on the membranes of the 
spines, and round black ones forming transverse lines on the 
soft part of the dorsal. The caudal has similar spots disposed 
transversely, and a large black blotch on each lobe of the 
caudal placed transversely ; the other fins have no spots. 
Length of specimen from eight to nine inches. 
Nota.— I believe this to be the Caudovittatus, but the 
dorsal fin is very strongly notched, and the last spines are 
much shorter than the soft portion, contrary to Dr. Gunther's 
description, and it may prove a different species, which I 
should then call Bostockii. 
Mr. Bostock says that this sort is known under the name of 
yellow tail at Freemantle, and that its flesh is firm and very 
savoury ; that it is rarely offered for sale, and that it is caught 
with line and net near rocks in the Swan River. 
HELOTES. 
This genus is very nearly allied to Therapon, but is easily 
distinguished by the teeth, which are trilobated. 
HELOTES SEXLINEATUS? 
Therapon Sexlineatus ? Quoy. et Gaim. Uranie Poiss 
pl. 60, fig. 1. 
Helotes Sexlineatus, Cuv. and VaL, vol. iii D uq 
pl. 56. ' 
Helotes Octolineatus, Jenyns, Beagle Fishes, p. 18. 
Silvery, with the back blue ; eight longitudinal and obscure 
bands on each side ; the upper part of the head is black, and 
there are two longitudinal bands of the same colour on each 
side of the head; the upper one crossing the eye ; fins reddish; 
